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36
SECTION C.
SANITARY AND ENVIRONMENTAL CIRCUMSTANCES
OF THE AREA.
Water.
I am indebted to the Clerk, and the Director of Water
Examination of the Metropolitan Water Board, for the following
information on the supply of water to the Borough during the
year 1950:-
"No standpipe supplies were provided, and houses throughout
the Borough received their supplies direct from the public
water mains.
No new source of public water supply has been instituted in
the area during 1950. There have been no extensions of trunk
mains, but short lengths of service mains have been laid within
the Borough, and the supply generally has been satisfactory as
regards quantity. The high level of the area is supplied from
Shortlands well and by Thames-derived water during the summer
months.
All the Thames-derived water is chlorinated before it leaves
the works. The well water is also chlorinated, but any residual
chlorine is completely removed before the water leaves the
works.
Bacteriological analysis of all supplies are made at least five
times a week and in the case of the river-derived supply the
water is tested bacteriologically at all stages of purification. All
new and repaired mains are disinfected with chlorine before
being restored to use and samples of water from them are tested
to establish that the quality of water is up to the standard
normally supplied.
None of the supplies is plumbo-solvent.
The closest watch is kept for any evidence of deterioration
in quality whether physical, chemical, bacteriological or
biological and immediate action is taken if the result of analyses
are not up to standard.
Appended are the average results of the chemical and
bacteriological analyses of the various supplies for 1950."